ENVKEM 5020- RO MEMBRANE ANTI SCALANT
Reverse Osmosis (RO) Membrane performance can be negatively impacted by impurities that build up on the membrane surface during operations. Suspended solids, microorganisms and mineral scale can foul membrane elements. These deposits can cause loss in output and/or rejection levels and reduce total system performance.
Antiscalants are surface active materials that interfere with precipitation reactions in three primary ways:
- Threshold Inhibition: It is the ability of an antiscalant to keep supersaturated solutions of sparingly soluble salts.
- Crystal Modification: It is the property of an antiscalant to distort crystal shapes, resulting in soft non adherent scale. As a crystal begin to form at the submicroscopic level, negative groups located on the antiscalant molecule attack the positive charges on scale nuclei interrupting the electronic balance necessary to propagate the crystal growth. When treated with crystal modifiers, scale crystals appear distorted, generally more oval in shape, and less compact.
- Dispersion: Dispersancy is the ability of some antiscalants to adsorb on crystals or colloidal particles and impart a high anionic charge, which tends to keep the crystals separated. The high anionic charge also separates particles from fixed anionic charges present on the membrane surface.
ENVKEM 5020 is designed to eliminate scale and reduce fouling in membrane systems, regardless of the feed water source.
Benefits:
- » Restores and prolongs membrane life
- » Maintains system performance
- » Protects membranes from oxidizing agents
ENVKEM 5020 – ANTISCALANT SPECIFICATION:
| PH (as such) |
< 3.5 |
| Appearance |
Pale Yellow Liquid |
| Water Solubility |
Completely Soluble |
| Solid Content |
33% to 34% w/w |
| Specific Gravity |
1.17 to 1.23 |
